Naturally China wants the middle east status quo. China needs fuel from Iran as well as American money. Cutting back on either will devastate their economy. America is spending themselves into bankruptcy in Iraq, because of Iran. This boosts china's economy in the process as well as its future status when America finally is forced to withdraw. Without Iranian problems, the middle east will quickly settle down, and world attention will focus on problems in China's backyard..their brutal occupation of Tibet, the problems in North Korea, and the Taiwan issue for example. In the end, it doesn't matter what China or any other nation says. The US without any doubt will destroy the Iranian nuclear sites and the rest of the world has no choice at all but to like it.
Iran deal opposition grows among U.S. Republicans, Reuters poll shows (Reuters)
from the article: China rejects Israel's call for tougher sanctions against Iran